Middungs-purifier



3 Sheets-Sheet -1.

A. R. GUILDER. Middlings Purifier.

No. 225,218. Patented Mar. 9, i880.

Y I 3Sheets-Sheet 2.

-A. R. GUILDBR. Middlings Purifier.

N0. 225,2l8. Patented Mar. 9, I880.

. h 3SheetsSheet 3. A. R. GUILDER.

'Middlings Purifier. No. 225,2I8." Patented Mar. 9, 1 880.

UNITED STATES aBsA oM n. GUILDER, F

MINNEAPOLIS, MINNESOTA.

MIDDLINGS-PURlFIER.

SPECIFICATION forming part of Letters Patent No. 225,218, dated March 9. 1880.

Application tiled December 18, 1879.

To all whom '1 6 may concern:

3c it known that I, Ans-\Lou R. GUILDER, of Minneapolis, in the county of llennepin, in the State of Minnesota, have made certain linprovements in Middlings-Puriliers, of which the following is a specification.

'lheohject of this invention is to so improve the machines heretofore used in purifying middlings that a single passing of the middlings through the improved machine will do and accomplish what required several operations in other machines, and also to prevent explosions by reason of the igniting of the tine floating dust in the null; and the invention consists in the special constructions and combinations of parts that accomplish the obieet, as will fully hereinafter be describelh 1n the drawings, Figure 1 represents a longitudinal sectional view of the machine. on line 3 y of Fig. .3, Sheet 2, and Fig. 3, Sheet 3. Fig. 2, Sheet 2, is an upright view of one end of the machine. Fig. 3, Sheet- 3, is an upright view of the opposite end of the machine. Fig. 4, Sheet 3, is a plan view of transverse brush and devices to give it motion; and Fig. 5, Sheet 1, shows enlarged view of details of parts.

a -Arepresents the usual frame to support the operating parts of the machine.

A is a transverse shaft driven by any convenient power by a belt around pulley a. Shaft A is also the shaftfor exhaust-fan case r Bis the feed-hopper into which the middlings to he purified are fed. B is the feedroller at the bottom of hopper B.

b is a sliding valve. to control the amount of middlings fed into the machine, and it is held in the desired position by holding-screws b the linty or fiufl'y and light adhering particles will be detached from the middlings.

c a concave block, inclined on its top side to direct the middlings to the brush, with a right-angled bottom to stop the brush from carrying any material up or above its bottom edge.

c' is an inclined guide-board, to give direction on the opposite side of the feed-hopper to the middlings and insure the delivery of the ,iniddlings to he. carried tin-ward by the brush.

0 is a wedge-shaped contracting bar hearing on the under side of the yielding jacket (3, to cause the jacket to he brought into closer contact with the revolving brush when necessary, and is operated by the rods 0', and retained in position by the screw-nuts 0. By this construction the jacket 0 becomes either expanding or contracting in its action, while the brush is non-expanding; but the same result would be effected by having the brush expanding or contracting in its diameter while the jacket is fixed in its diameter. Dis a wind-valve hinged atits bottom edge, and regulated in its adjustment by rod 1? and screw-nut (l, to admit a greater or less amount of airthrough aperture D in the casing of the machine. It also deflects the inliowing aircurrent in a proper direction.

E is an endless carrier, with its carriertroughs E attached to chains e, that pass over sprocket or other wheels 0 on transverse shafts e" c in dust-chamber E", and may receive its motion from either of shafts c by any proper means'l'rom the main shalt A.

F is a brush attached to the endless car rierchains 0, and travels with the chains around the shaft 0" and in contact with a removable dust-cloth, F, that is situated directly over the carrier and serves thopurpose of keeping the meshes in cloth F open to allow the free passage of air, and any light line dust to pass through the cloth into the fan-case, and thence to he forced out through exit-openingXofthe air-tube to fan-case A', and outside of the mill-building. This fine dust so discharged and efi'ectually forced outside of the building is by this construction prevented from mingling with the heated air in the mill, and will prevent the liability of an explosion such as frequently occurs to the destruction of the n 'l. itself.

f is an inside inclined hopper directly under the deliveryend 0t theendless carrier, audcon- I ducts whatever passes 00' the carrier outside of the machine, or outside of the building,-

through opt-niugfiin tho casingot'thc machinc. ()p-ming j". for safety, is incloscd on its'outside by tlap valvvj.

t (,1 are on longitudinal rt-ciprocating; sidu picccs of the shaking a|nl-rcciprocating bolt,

, having: ta'oss-girts G at onc cud and as many tendingoutside of the case tarcnongh to fornr tho bottom ot" hoppt-rl'l, hat rcccivcs thc middlings fr m tho .disintegratingbrnsh U, and dclivcrs: thcm upon thc bolt-cloth g of the Si 12v it cl.

It I! arc diagonal or cross rods secured at one cnd to the sides of the shaker, and the other cud passing through the casing, whcrc it is rcgulatcd b v an adnisting-nut, h, and, b v contracting: the rod in its lcugth, brings thc t'ratnc over toward that sideof the casing, hence will throw the rcciprocations of thc shaker-frame out ot'a direction parallel with the center of the machine and change the direction of the middlings on this bolt-cloth. I

I is a transverse revolving shaft, getting its motion from shaft A" by bclt and pulleys, or any other convcnicnt mcans, an! has two ccccntrics fast upon it ncar the sides of the case, m 'ch revolve in boxes in stirrups'z" i, that are sccurcd to the sides of thcslnilter-framc, and by which the bolt or shaker is rcciprocatcd.

J J arc two revolving longitudinal shafts, made to revolve by any ctmvcnicnt inc-ans from thodrivingshaft A, audit-ave their-journal-bearings in transvcrsc lu-idgc-trccs, and

' have sprocuct or toothed wheels j near each end and fast thcrcon.

J J are transverse and :nljustablo bridgetrees, in which are the journal-boxes of the shafts J. These bridge-trees are adjustable up or down for the'purposc of adjusting the brush. thac'wipcs the under side of the boltcloth as the brushes wear. cit, through the means of the slctsjj and holdiug-scrcwsj".

K is a brush placed longitudinally undcr the bolt-cloth g, the bristles of whichare fast; in the stock bl.

I. I: arcsupports' to the brush K, eitending from and arounal' the sha ts J, so that the said shafts revolve within them at, each end of the supports, and upon which supports'thobrushstock. freely slides in its passage over them.

L is a transverse guide-stock attached to one of the supports 7;, and has secured upon its upper edge a corrugated guide-plate, I, that: goes bet-ween two friction guide-rollers, IE, on downwardly-projecthrg studs k on the under side of brush-stock K. i

0 O are endless chains that. go around sprockchwhccls j on shuns-Ll, and travel in a transverse direction under. the bolt-cloth and to which chains the hrus'hstock ll is atthat as the chains travel. in our: (.lil'tazlltm thcy carr;- the brush-stock with thorn in a transvcrsc direction across thc' entire width of the bolt-cloth, and while it; so travcls the corlngatcd or bent guidc-platc l and friction guide-rollers 1." cause. they brush to hurt: a longitudinal or eudwisc' motion of sovcral reciproeations while it is in contact with and sutcping across tho bolt-cloth, thus rivia; to the brush a motion in twodire't-tions while in contact with tho bolt-cloth, which is more. cti'cctivc in clcaring the mcshcs ot' the lmlt olntlt from all atlhcring substanccs.

Operation: The miil dlings arc fed into tho hopper B, and tho food rcg-ulatcd by the feedl-ollcr l3; thence tho lllltltililLP'S gravitatc to the rrwolving brush C, and arc. carried around in contact with tho roughcncd surface of the jacket C whore thc'grains ot' iuiddlings arc scoured bt-twc-cn thc brush and tho rough surface of the inner shlc of the jacket. which scours olt'al'l adhering linty and useless particles from the. middlings, and, as tho scoured middlings and the particles detached therefrom fall out of contact with tho jacket and brush, they come in dig ucticontact with an intlowing current of air through an opening at; the bottom of tho hopnmwhich current of air carries upward all tholight coarse material and the line liuty or-fibrous substance and dust, through the dust-space, against; a dustcloth at the. upper or top part of the machine by the exhaust-fan A, the finest dust passing through the. cloth to the fan, and thence out of the machine, while the coarser and heavier particles fall upon the troughs on the endless carrier, to be carried to the opposite side of the machine, to be passed outsidc thereof, and at: tho same time a brush traveling with the endless carrier sweeps oft any adhcring substance or particles from the dust-cloth above the endless carrier, and serves to keep the meshes of the dust-cioth open, so as to admit of a free circulation of air up through the machine to the exhaust-fan.

The scoured middliugs and particles too heavy to be carried off by the air-current fall into hopper H at; one endof the reciprocating shaker or bolt, thence onto the bolt-cloth, where they are subject to the quick reciprocations of .the shakeiythe middlings falling through the bolt-cloth, that; is graded in its meshes, down into the conveying device, to be disposed of as desircd, whilo tho coarser particles that cannotgothrough the cloth arc passed oifthe tail ot'.-tl|e bolt and conveyed away, to be disposed of separatc from the middliugs. o p

All thgtimc that thomiddliugs are upon the bolt a current: of air is caused to go through the openings between -the overlapping slats near the bottom of the machine by the exhaust-fan A", which assists in taking from the too middline's on the bolt any fine light particles thateseaped the til-st wiudingot'the middlines, and carries such light substance up to be discharged from the machine by the endless can ricr 1), and disposed of in the manner before descril'ied.

' Having thus described my invention, what I claim is i 1. In a middlings-purifier, the combination ofthejrevolvingbrnshC,theyielding-jacketU, havine its inner surface corrugated or roughened, and inclined and concave feed-block c, constructed and tmcra'ting as described.

2. In a middlings-puritier, the combination of the yielding jacket 0, having; a corrugated or roughenml inside sin-lace, the contracting bar 1., rods 0, and nuts 12* with the revolving brush C, constructed and operating substair tially as described.

3. in a machine forpurifyingmiddlings, the combination of the revolving scouring-brush O, yieldin; jacket- C, and endless carrier E, hating carrier-troughs E, and exhaust-fan A, as and for the purposes specified.

' 4. The traveling brush 1,earrier-tr0ughs E,

' and dust-cloth F, in combination with the ex- 5. The combination of the reciprocating bolt- Gy and traiisversely-moring brush K, having a longitudinal reciprocatiin, motion, substantially as and for the purpose described.

0. The combination of the corrugated guideplate I on cross-bar L with the transverselytraveling' brush K, having guidc'rollcrs k as and for the purposes described.

7. The combination of the reciproeatiugbolt- G 1 the transversely-trareling and longitudinally-moving brush K, and adjustable bridgetrees J, as and for the purpose described.

S. The combination of the diagonal crossrods I: with the reciprocating shaker 0r bolt G g, as and for the purposes described.

it. The combination, in amachine forpuritying 1niddlings,ot' the revolving brush 0, the corrugated or roughened yielding jacket C, the dust-cloth 1 traveling brush F, the reciproeating bolt G g, and transverse longitudinallyreeiprocating brush K, their operating devices, and exhaust-tan constructed and operating as and for the purposes substantially as described.

ABSALOM R. GUILDER.

Witnesses:

J. MASON GoszLER, A. T. SMITH.- 

